Police Chief Russell Jack said Shanel Negron, 24, died Monday at a home near Moreland Boulevard and Summit Avenue after being shot in the head.

Police are searching for Eddie Donald Callaway, 26, in connection with the shooting. Jack said he is considered armed and dangerous and should not be approached.

Jack said a weapon used in the shooting had not yet been recovered.

"We don't want anyone making contact with him. We consider him armed and dangerous," Capt. Ron Oremus said. "He had a handgun that was not recovered at the scene, so we don't want anyone to make contact. If you see him, call 911 obviously."

Neighbors were surprised at the events that unfolded.

"We came outside and I heard all the police," said neighbor Cristin Books. "I ran outside and that's when the whole neighborhood was swarmed with police."

Police said Callaway drove off in a 2002 Ford Taurus with Wisconsin license plate Number 394 TVK.

Police said they had been called to the home before, but not on a domestic violence complaint. He said that Negron and Callaway have been living together.

"He never seemed like that kind of person," Books said of Callaway. "I've known him for a long time and he's never ever seemed like that before."

Waukesha police ask that if anyone witnessed a possible argument, fight or shooting in the area to please call them at 262-524-3780.